Webster’s Revised Unabridged Dictionary · 1913
Plumose
Plu·mose′, Plu′mous, a. [L. plumosus, fr. pluma feather: cf. F. plumeux.]
1. Having feathers or plumes.
2. Having hairs, or other párts, arranged along an axis like a feather; feathery; plumelike; as, a plumose leaf; plumose tentacles.